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(11) | EP 1 437 544 A3 |
(12) | EUROPEAN PATENT APPLICATION |
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(54) | Indicator for a vehicle with polarized light |
(57) An indicator equipped with a polarized light splitter, which passes and reflects
an un-polarized light irradiated from a light source and divides the polarized light
into a p-polarized light whose oscillation direction of an electric field is parallel
to an incidence plane and an s-polarized light whose oscillation direction of an electric
field is perpendicular to the incidence plane. In this indicator, at least one of
the p-polarized light and s-polarized light is emitted from the polarized light splitter
as a horizontal polarized light whose oscillation direction of an electric field is
substantially parallel to a ground. The indicator makes the vehicle more visible from a surrounding area even in an adverse condition, such as thick fog or heavy rain. |